The intensity of the colors in a marigold are bold, vibrant & yes -- intense.
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I found those same intense colors in Patons Angora Bamboo yarn. Vibrant colors, but oh, my! what truly took my breath away was the ultra-softness of this yarn.
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The pattern for this marigold brooch is actually my crocheted peony brooch from here.
Changing it up a bit -- I made it a different color with no embellishment sewn in the middle & crocheted the leaves instead of making them out of fabric.
The leaves are from Nicky Epstein's book: